There are 20, 2-digit integers that have both of there digits as even: 20, 22, 24, 26, 28, 40, 42, 44, 46, 48, 60, 62, 64, 66, 68, 80, 82, 84, 86, 88.
If you lift the constraint of the number itself only being able to have 2 digits, then there are an infinite amount of numbers with 2 even digits in them, as you can string together two of the following numbers, 0, 2, 4, 6, and 8, with as many odd numbers as you wish.
Finally, to answer your question in the discussion section, there are an infinite number of even numbers. This is because there are an infinite number of integers, and 2 X any integer is necessarily even.
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two
There are 41 of them.
28
it can be 22 44 66 or 88, yes that is true, but it can also be 20 22 24 26 28, and so on because the person clearly says that the number has two digits and both digits are even, but the person did not say that the even numbers had to be the same
The only two digit numbers whose digits add up to 17 are 89 and 98. Since 98 is an even number, 89 is prime.